> Hi>> In Linux you either put chmod and chown in rc.local to set raw devices> permissions or use udev.>> In HP-UX I have not seen this issue, the permissions are persistent even> after reboot for Raw Devices.>> In HP-UX 11.31 this can happen if the devices are created with mksf instead> of mknod, whenever you add new devices with insf -e this will reset> permissions>>> Thanks>> --> LSC>>>>> On Wed, Jul 30, 2008 at 10:43 AM, Syed Jaffar Hussain <> sjaffarhussain_at_gmail.com> wrote:>>> Hi list,>>>>>> We currently have a 4 node Oracle RAC on HP UX Superdom Itanimum II with>> EMC SAN (Symatrix DMX4) storage. Since few days, we are facing an abnormal>> situation where the RAW disks permissions (includes OCR, Voting and ASM>> disks) are getting changed dynamically and sometime during the node reboot>> too, which cause Cluster hung situation. Our current workaround is to reset>> the permissions to RAW disks.>>>> If I am not wrong, this sort of problem exists on Linux reboot and to>> prevent this, we need to set a parameter which keeps the existing parameter>> alive. I am not sure this is the same case on HP. Does anyone out there has>> faced similar kind of issue? or it is very abnormal situation?>>>> We did open a call with HP support and they said, basically, OS doesn't>> have any control on the RAW devices and definately it won't change the>> permission either dynamically or during the reboot time and they suspect>> Oracle might be doing something to change the permission.>>>> I have opened a TAR with Oracle too and waiting for the reply. Appreciate>> if someone can put some limelight on this issue.>>>> -->> Best Regards,>>>> Syed Jaffar Hussain>> Oracle ACE>> 8i,9i & 10g OCP DBA>> RAC Certified Expert>>>> Official Oracle RAC SIG Representative for Saudi Arabian region (>> http://www.oracleracsig.org/)>> http://jaffardba.blogspot.com/>>>> http://apex.oracle.com/pls/otn/f?p=19297:4:1579866181463918::NO:4:P4_ID:126>>>> ---------------------------------------------------------------------------------->> "Winners don't do different things. They do things differently.">>>>>>>> -->> Best Regards,>>>> Syed Jaffar Hussain>> Oracle ACE>> 8i,9i & 10g OCP DBA>> RAC Certified Expert>>>> Official Oracle RAC SIG Representative for Saudi Arabian region (>> http://www.oracleracsig.org/)>> http://jaffardba.blogspot.com/>>>> http://apex.oracle.com/pls/otn/f?p=19297:4:1579866181463918::NO:4:P4_ID:126>>>> ---------------------------------------------------------------------------------->> "Winners don't do different things. They do things differently.">>>>